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UNITED STATES PATENT OEEIcE.

ROBERT MONROE, ER STONE, AND EDGAR ST. JOHN, OF ELMIRA, N. Y.

VENTlLATlNG-WINDOW FOR RAILROAD-CARS.

To all whom it may concern:

Be it known that we, ROBERT MONROE, ER STONE, and EDGAR ST. JOHN, of thecity of Elmira, county of Chemung, and State of New York, have inventeda new and valuable improvement in the way or manner of ventilatin g theelevated section or raised roof in passen gercoaches and other vehicles5 and we do hereby declare that the following is a full, clear, andexact description of the same, reference being had to the accompanyingdrawings, forming a part of this specification, of which- Figure l is aclosed outside elevation. Fig. 2 is a closed inside elevation. Fig. 3 isa closed end elevation, with dotted lines showing its operation.

This invention is an improvement in that class of inventions known asrailway and other coach ventilators 7 and it consists ot'one or moremovable deliecting planes or panels, of whatever kind of material, inthe elevated section or raised roofs of said coaches, or-wher- ,everplaced, all operated at once by the same motion, each one beingconnected by an arm to a rod lying on the roof proper of the coach, orwherever else necessary for its action, and resting in bearings for thatpurpose, so that when the lever operatin g said rod is moved the jointedarms connecting said movable deflecting planes or panels to said rodwill Open all the said planes or panels, or close them, at one and thesame time, by which arrangement an opening is made for the escape ot'the impure and heated air gathered in the vehicle without subjecting theinmates of the vehicle to the annoyance of dust and cnders fallingthrough the openings upon them, all the parts being not only useful butornamental, and not liable to derangement.

To enable those skilled in the art to make and use our invention, wewill now proceed to describe its construction, the same letters in eachand all the figures referring to like parts.

a represents the roof proper of the coach; b, upright part or frame ofelevated section; c, roof of the elevated section; d, movable deflectingplanes or panels 5 e, hinging of planes or panels to the elevatedsection 5 f, operatingrod lying on the root` proper or Wherever elserequired; g, supports for the operating-rod; h, jointed arms connectingthe movable deecting panels or planes to the operating-rod; i,connecting-rod from the lever to the arm upon the operating-rod; 7c,guard in which the lever moves; Z, lever; m, arm connectingoperating-rod to lever; n, spring to hold the lever in any positionplaced 5 p, fulcrum or center of motion to lever; r, rafter of coachproper.

All the gures represent the movable deflecting planes or panels asclosed. The operation of all the parts is such that when the lever lismoved in the direction of the dotted lines, as shown in Fig. 3, all themovabledefleeting planes or panels d are pushed outwardly as far asdesired in the direction of the dotted lines indicating their motion,thus at'- fording as many openings as there are planes or panels dconnected to the Operating-rodj for the escape of heated or impureatmosphere collected in the upper part or elevated section of the coachor vehicle, and as there should be the same number of these movabledctlecting planes or panels in both sides and at both ends intheelevated section or vehicle, opening toward the ends of the coach orvehicle, the perfect ventilation of the coach or vehicle is constantly7under the complete control ofthe conductor or any other person simply bymoving the lovers l, which will Open and close the movable deiiectingplanes or panels d iu the said elevated section, Or wherever located, inthe direction opposite to that in which the coach or vehicle is moving,the intention being to keep,the movable deflecting planes or panels inthe forward part of the coach or vehicle closed, to prevent theadmission of dust and cinders.

We do not claim any of the parts used as new or of our own invention,because they all are old and used in mechanics.

What we claim as our invention, and for which we desire to secureLetters Patent, is

The arrangement of the following-named parts, viz: hinges e,Operating-rod f, jointedv arm h, connecting-rods t and m, guard k, leverl, spring n, and fulcrum p, when used in combination with the movabledellecting planes or panels d, substantially for the purposes set forth.

ROBERT MONROE. ER STONE. EDGAR ST. JOHN.

In presence of- N. P. FAssETT, S. S. HAMLIN.

